For a number of enterprise Wi-Fi connection types, IT administrators will deploy profiles they create with iPhone Configuration Utility to automate and/or restrict user Wi-Fi connections. Including the CA Certificate for these connections will remove the users’ need to verify that they trust the Certificate(s) provided each time they reconnect to Wi-Fi. CA Certificates and Trust settings can be provided within configuration profiles.
One way to back up your iTunes library is to consolidate your library into one folder and then copy that folder to an external hard drive. This is a painless process that only takes a few moments to accomplish.